CN205544666U - Intermediate frequency asynchronous motor - Google Patents
Intermediate frequency asynchronous motor Download PDFInfo
- Publication number
- CN205544666U CN205544666U CN201620060576.1U CN201620060576U CN205544666U CN 205544666 U CN205544666 U CN 205544666U CN 201620060576 U CN201620060576 U CN 201620060576U CN 205544666 U CN205544666 U CN 205544666U
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- rotor
- intermediate frequency
- width
- asynchronous motor
- axle
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Abstract
The utility model discloses an intermediate frequency asynchronous motor, intermediate frequency asynchronous motor constitutes as follows: front end housing (1), casing (2), stator (3), rotor (4), rear end cap (5) and axle (6), front end housing (1) and rear end cap (5) through threaded connection at the both ends of casing (2), stator (3) crimping is inside at casing (2), rotor (4) crimping is on axle (6), the both ends of axle (6) cooperate through bearing and front end housing (1) and rear end cap (5) respectively, rotor (4) are provided with the recess, and width of rebate is greater than groove bottom width, and width of rebate is 1.5 times of the rotor breadth of tooth, the high width of rebate's 23 that is in groove. After the motor rotor adopted collection skin formula cell type, the effectual rotor current density that has reduced had reduced skin effect and to the influence that rotor current produced, has improved motor performance. Intermediate frequency asynchronous motor has simple structure, reliable, the sturdy and durable advantage of operation.
Description
Technical field
This utility model relates to structure design and the applied technical field of motor, specifically provides one
Intermediate frequency asynchronous motor.
Background technology
This electric motor operation frequency is higher, and rotor current kelvin effect is serious, and current state built-in motor turns
Son uses pears type groove or parallel slot mostly.Motor performance is produced considerable influence.
The intermediate frequency asynchronous motor that a kind of technique effect of the highly desirable acquisition of people is excellent.
Utility model content
The purpose of this utility model is to provide the intermediate frequency asynchronous motor that a kind of technique effect is excellent.
Described intermediate frequency asynchronous motor constitute as follows: drive end bearing bracket 1, housing 2, stator 3, rotor 4,
Rear end cap 5 and axle 6；Described drive end bearing bracket 1 and rear end cap 5 are threadedly attached in the two ends of housing 2,
Drive end bearing bracket 1, rear end cap 5 and housing 2 constitute agent structure, play the effect of support, and stator 3 crimps
Inside housing 2, rotor 4 is crimped on axle 6, and the two ends of axle 6 are respectively by bearing and drive end bearing bracket 1
Coordinating with rear end cap 5, described rotor 4 is provided with groove, and width of rebate is more than slot bottom width, notch
Width is 1.5 times of the rotor facewidth, the 2/3 of a height of width of rebate of groove.Motor is by axle output machinery
Torque band dynamic load campaign.
Electric motor operation frequency is higher, and the kelvin effect of rotor current is serious, and rotor current can be made to concentrate
Higher on the top of groove, i.e. electric current density.Conventional peariform slot or parallel slot are relatively deep, its groove bottom base
This no current, i.e. electric current density are relatively low, reduce the utilization rate of rotor slot, increase rotor loss, make
The efficiency of motor reduces.
The rotor width of rebate of intermediate frequency asynchronous motor described in the utility model is more than slot bottom width, permissible
It is referred to as collection skin formula grooved, is increased the cross section on groove top by the width of the height of reduction groove, increase groove
Long-pending, make the effective area of rotor slot closer to air gap, this utility model can effectively reduce rotor current
Density, reduces the impact that rotor current is produced by kelvin effect, improves the utilization rate of rotor slot, more
Reasonably make use of kelvin effect, reduce rotor loss and then improve the efficiency of motor.
It is passed through three-phase 400Hz symmetrical current during the work of described intermediate frequency asynchronous motor, thus air gap is built
Vertical rotating excitation field, this rotating excitation field induction electromotive force at rotor windings in the rotor windings of short circuit
The corresponding electric current of middle generation, this electric current interacts with the rotating excitation field in air gap and produces electromagnetic torque,
Rotor rotates under the influence of this torque, drives entity load movement by rotating shaft, it is achieved electric energy is to machine
The conversion of tool energy.
Described intermediate frequency asynchronous motor is the auxiliary products of aircraft electrical system.There is structure letter
Advantage single, reliable, robust, wide market, be widely used in space flight, aviation,
The actuator of electronic equipment such as boats and ships.After motor rotor uses collection skin formula grooved, effectively subtract
Little rotor current density, reduces the impact that rotor current is produced by kelvin effect, improves electronic
Machine performance.Described intermediate frequency asynchronous motor has simple in construction, advantage reliable, robust.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and this utility model is described in further detail by embodiment:
Fig. 1 is intermediate frequency Induction Motor Structure schematic diagram；
Fig. 2 is parallel slot schematic diagram；
Fig. 3 is peariform slot schematic diagram；
Fig. 4 is collection skin formula grooved schematic diagram.
Detailed description of the invention
Embodiment 1
Described intermediate frequency asynchronous motor constitute as follows: drive end bearing bracket 1, housing 2, stator 3, rotor 4,
Rear end cap 5 and axle 6；Described drive end bearing bracket 1 and rear end cap 5 are threadedly attached in the two ends of housing 2,
Drive end bearing bracket 1, rear end cap 5 and housing 2 constitute agent structure, play the effect of support, and stator 3 crimps
Inside housing 2, rotor 4 is crimped on axle 6, and the two ends of axle 6 are respectively by bearing and drive end bearing bracket 1
Coordinating with rear end cap 5, described rotor 4 is provided with groove, and width of rebate is more than slot bottom width, notch
Width is 1.5 times of the rotor facewidth, the 2/3 of a height of width of rebate of groove.Motor is by axle output machinery
Torque band dynamic load campaign.
Electric motor operation frequency is higher, and the kelvin effect of rotor current is serious, and rotor current can be made to concentrate
Higher on the top of groove, i.e. electric current density.Conventional peariform slot or parallel slot are relatively deep, its groove bottom base
This no current, i.e. electric current density are relatively low, reduce the utilization rate of rotor slot, increase rotor loss, make
The efficiency of motor reduces.
The rotor width of rebate of described intermediate frequency asynchronous motor is more than slot bottom width, can referred to as collect skin formula
Grooved, is increased the sectional area on groove top, makes rotor by the width of the height of reduction groove, increase groove
The effective area of groove is closer to air gap, and this utility model can effectively reduce rotor current density, reduces
The impact that rotor current is produced by kelvin effect, improves the utilization rate of rotor slot, more reasonably utilizes
Kelvin effect, reduces rotor loss and then improves the efficiency of motor.
It is passed through three-phase 400Hz symmetrical current during the work of described intermediate frequency asynchronous motor, thus air gap is built
Vertical rotating excitation field, this rotating excitation field induction electromotive force at rotor windings in the rotor windings of short circuit
The corresponding electric current of middle generation, this electric current interacts with the rotating excitation field in air gap and produces electromagnetic torque,
Rotor rotates under the influence of this torque, drives entity load movement by rotating shaft, it is achieved electric energy is to machine
The conversion of tool energy.
Described intermediate frequency asynchronous motor is the auxiliary products of aircraft electrical system.There is structure letter
Advantage single, reliable, robust, wide market, be widely used in space flight, aviation,
The actuator of electronic equipment such as boats and ships.After motor rotor uses collection skin formula grooved, effectively subtract
Little rotor current density, reduces the impact that rotor current is produced by kelvin effect, improves electronic
Machine performance.Described intermediate frequency asynchronous motor has simple in construction, advantage reliable, robust.
Claims (1)
1. an intermediate frequency asynchronous motor, it is characterised in that: described intermediate frequency asynchronous motor constitutes as follows:
Drive end bearing bracket (1), housing (2), stator (3), rotor (4), rear end cap (5) and axle (6)；Institute
State drive end bearing bracket (1) and rear end cap (5) is threadedly attached in the two ends of housing (2), stator (3)
Being crimped on housing (2) internal, rotor (4) is crimped on axle (6), and the two ends of axle (6) are respectively
Being coordinated with drive end bearing bracket (1) and rear end cap (5) by bearing, described rotor (4) is provided with groove,
Width of rebate is more than slot bottom width, and width of rebate is 1.5 times of the rotor facewidth, a height of width of rebate of groove
2/3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620060576.1U CN205544666U (en) | 2016-01-22 | 2016-01-22 | Intermediate frequency asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620060576.1U CN205544666U (en) | 2016-01-22 | 2016-01-22 | Intermediate frequency asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205544666U true CN205544666U (en) | 2016-08-31 |
Family
ID=56767348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620060576.1U Expired - Fee Related CN205544666U (en) | 2016-01-22 | 2016-01-22 | Intermediate frequency asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205544666U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576864A (en) * | 2016-01-22 | 2016-05-11 | 沈阳兴华航空电器有限责任公司 | Intermediate-frequency asynchronous motor |
-
2016
- 2016-01-22 CN CN201620060576.1U patent/CN205544666U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576864A (en) * | 2016-01-22 | 2016-05-11 | 沈阳兴华航空电器有限责任公司 | Intermediate-frequency asynchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20210122 |